Black looks brown IR 3020

[cfarris]

I have an Imagerunner 3020, and when I make a copy the cmy colors look descent, but the blacks look brown. Could anyone point me in the right direction?

Thanks!

[Andyboachie]

Re: Black looks brown IR 3020

Hi,
Somehow, you did not state how dominant the blackness is. You did not also state what efforts you have made in correcting the error. Could you check the quantity of black ink you currently have? I am saying this in respect to the following solutions:
1. Like all printers, when black ink is getting finished, the remainder of can be mixing with any other dark color to compensate for creating dark images.
2. A fault with leaked waste toner can cause this.
and
3. A faulty charge unit can cause this

I wish all the best buddy!

[Luther]

Re: Black looks brown IR 3020

do you mean an irc3200? if it is, is the machine in full color mode? what happens when you select black instead of auto color or full color? try this>>>To achieve a better shade of black enter service mode level 1 COPIER>ADJUST>PASCAL>OFST-P-K and change the value from "0" to "+50" this should produce a darker black

[cfarris]

Re: Black looks brown IR 3020

Thanks for the help guys. I have replaced the black toner and cleaned the fixer roller. I will try the pascal setting. I am also getting random lines of "black" toner on the page. Any solutions? Thanks so much for the help!

[cfarris]

Re: Black looks brown IR 3020

It happens in black and white and color mode

[northernlife]

Re: Black looks brown IR 3020

Black dev got contaminated. Vaccum it out and run an init with a new cartridge.

[cfarris]

Re: Black looks brown IR 3020

I have done the devl-cln and it did not help.

[Abrantes]

Re: Black looks brown IR 3020

I have an Imagerunner 3020, and when I make a copy the cmy colors look descent, but the blacks look brown. Could anyone point me in the right direction?

If U mean that pure black copies shows brown it shure is a problem. Can you take samples and post the same image on CYMK and pure black?

I don't think it's easy to bk unit get any contamination by magenta toner. but if it happens it should have been fixed by a unit bk replacement.

If the problem is only at CMYK images it's maybe only a color balance setup problem. U have many adjusts that can have been changed.

[vigour]

Re: Black looks brown IR 3020

First, check the drum percentages. If it is over 200%, replace your black drum unit
Black marks may be on drum. LOOK at drum. Do you see brown toner, do you see hardened toner on drum.
If your dev is contaminated, perform clean 3 or 4 times, or run 20 double sided PG5 s

[teckat]

Re: Black looks brown IR 3020

Canon oem drum ?

Canon oem toner ?

[Canon.Tech]

Re: Black looks brown IR 3020

NEVER try & vac out these drum unit, you'll vac up all the dev & ruin that unit!

Simply fit a new drum unit.

[Canuck]

Re: Black looks brown IR 3020

Sounds like process black..as stated if you choose black(not auto color) is it brown? This should be spot black as opposed to process black. If your spot black looks brown,replace the black drum and go from there. Do gradations,etc. Clean optics,ccd adjust,etc. I have seen poor colors on machines because techs are doing full gradations with dirty optics.It will affect prints also.Clean them,set white levels,do gradations after they have been cleaned.

[cfarris]

Re: Black looks brown IR 3020

I got the color problem solved. Emptied the waste toner, cleaned the developer and did the pascal adjustment and the black looks great.
Attached are pictures of output, the page has vertical lines, a horizontal line and a stain. Again I appreciate all of the help! I am almost there!2.jpgphoto1.jpg

[Abrantes]

Re: Black looks brown IR 3020

the line is a problem at transfer belt cleaning blade (you need to clean it up or change the blade), the other problem is cased by oil or moisture at trasfer belt surface, have you touched it? clean with a smoth cleaning cloth and isopropanol (100% alcohol)


also there is a wrinkle (small crack, bend or smth like) at the transferbelt. verify it.


as I can see there's some problem at your drum, seems like black drum problem but I can't assure.

[Desert Rat]

Re: Black looks brown IR 3020

That line looks a lot like what I have seen when the scan glass has a spec of dirt on it.
If the smudge repeats look at the fuser or drum. Does it smudge or put a line on single
color copy?
On problems like this I always do the suggested cleaning of the optics.
I will only run from the glass until I get the problem under control. This
will eliminate the Doc Fdr as part of the problem.
Run something on 17" paper to see if it repeats and do single colors.

HTH

DR